Regioselective Synthesis and Structural Studies of Substituted γ-Hydroxybutenolides with Use of a Tandem Baylis−Hillman/Singlet Oxygenation Reaction
作者:Santoshkumar N. Patil、Fei Liu
DOI:10.1021/jo702762u
日期:2008.6.1
scope and limitations of a regioselective synthesis of either α- or β-substituted γ-hydroxybutenolides from 3-furfural and enones are described. The sequence features a Baylis−Hillman reaction followed by singlet oxygen oxidation with use of either an amine base or TBAF as the regioselectivity switches. Structural studies in solution on some of the resulting γ-hydroxybutenolides are also reported.